Apparatus for utilizing waste heat from products of combustion



F. H. COLE.

APPARATUS FOR UTILIZING WASTE HEAT FROMPHODUCTS 0F COIIBUSTIUN.

APPLlcmon FILED SEPI. x5. 1914.

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F. H. COLE.

APPARATUS ron ummm; wAsTE HEAT Faun Pnouucs or comsuslou.

APPLKCATIUN FILED SEPT. I6, |914.

Patented May 2, 1916.

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Mai?? UNITED STATES PATENT OFFICE.

FRANK H. F CHELSEA, MASSACHUSETTS APPARATUS FOB UTILIZING 'WASTE HEATEROI PRODUCTS 0F CO-IBUSTION.

To all whom it mog concern.'

Be it known that I, FRANK a citizen of the United States, resi atChelsea, in the county of Sufolk and tate of Massachusetts` haveinvented new and useful Improvements in A tus -for Utilizing Waste Heatfrom roducts of Combustion, of which the following is a specification.

This invention relates to improvements in apparatus for utilizing wasteheat from products of combustion.

The object of this invention is to provide an apparatus adapted to beused in connection with boilers or heaters for the purpose of securingfrom the smokegas or products of combustion substantially all of theheat units which would normally be charged as waste through a stack tothe air or otherwise, such heat units representing from 40% to 6592 ofthe total number contained in fuel.

Another object of this invention is to provide simple and eicient meansfor still further reducing the temgerature of smoke or gas and incarrying o the smoke and cinders.

Still another object of the invention is to provide meansfwtleereby thesmoke llskaend air passages o apparatus may pt ree from smoke andcinders.

li'he invention in the an arrangement o parts set o in following tionand particularly Pd m te immens F- 1- erring to i e igure is alongitudinal sectional elevation of a boiler illustrating one form ofapparatus embodymy invention. Fig. 2-is a detail sectional plan of the0' the smokeandairflues. Fig.3isapartial front elevation of a battery ofboilers illustrating the manner in which one apparatusmaybeutilizedtotakecareofthesmoke frmntwoormoreboilersportonsofsnidfigure being broken away and other parts s howninsection.Fig.4isasectiontakmi on line 4-1 of Fig. 1. 1

Like numerals refer to like parts throughout the several views of thedrawings.

In the 5 is a boiler preferably, though not nessarily, of the water tubetypeofboilerand ofarebox with a ustion chamber 7 from which theproduetsof combustion are discharged through an opening or dis-Spccicaon ot Letters Patent.

Application Iled September 18, 1914. Serielle. 862,038.

Patented ilay 2, 1916.

charge orifice 8 into a smoke llue 9. In the present case however gasesare preferably not discharged directly into the smoke iiue 9, but passthrough an economizer or what is sometimes called a secondary boiler 10of the usual and well known construction and adapted to heat water,which is aed thro said econcmizer, by means o lpipes Il an subsequentlydelivered to the boi er 5 in a partially heated state in order that theeiliciency of the boiler may not lbe reduced when the same is initherein. A ffer leaving the secondary boiler 10 the snoke line 9preferably descends slightly and is connected with a casing 12preferably containing a plurality of smoke passages or ues 13 and aplurality of air passages or conductors 14 extending longitudinally ofsaid casing and alternating with said smoke passages, said air passagesbeing in close proximity to said smoke passages.

The casing 12 is preferably rectangular in shape and horizontallydisposed, while a plurality of partitions 15 extend longitu nally ofsaid easing dividing the same into passages which constitute said smokeand air paagcs. These partitions are refer abl corrugated transverselyof their length, sai corrugations in the present instance gif verticallydisposed as at 16. The de spacing of said partitions is by means ofbolts 17 transversely of the casing through the side walls 18 and 19thereof upon which are mounted sections 0f tubes 20, 20 offthedesn.'edf` h lengths whilci engage'opposite aces o e partitions I n thepreferred embodiment of the invention there are four of said partitions15 which divide the casing 12 into live passages 21, 22, 23, 24 and 25,the paages 21, 23and25beingairpassages,whilethepas sages 2 2 and 24 aresmoke paages therebv providing a circulation of air along each side ofthe smoke paages.

Asngcetldue 9 lesceubI ds thf i omhthe heater it isco preera yl ugopenings 26 andliiiintheogcp otQhcasingwithetwo smo ues an permitan,l Ie and smoke from the furnace or boilergl pa longitudinally of the casing12. The amount of smoke pasing therethrough is governed by dampers 22'and 24 adjacent the inlet ends of said lines.

The opposite ends of the ilu 22 and 24 unite with a common smoke liue 28which is bent substantially at right angl to form @$1110 Clinge plpeffor the blower- 32 preferably an elbow :29 extending downwardly carriedthereby front'of the boiler; said erably operated'by 4an the er?) ,watma upwardly and connect with the erlydrectly extendsnansversely of towhich said blower is to Pipe 34 hung 4-the "furnia I form thenxbq by theblower 32 the winnaar-Mee m24 for he mener:

curnts of air and seid gases have reached :L temperature substantiallyuni- The Lair heated' in this manner will conductor 31 into the blowercasn from whence it. will be forced by seid lower through the pipes 35to the combustion chamber-"or ne box o the boiler, whereupon thecombustion of the gases and fuel thered in will be greatly enhanced byreason of-thefeicithg'.l said air has been heated before-it isadgnttedtothe lire box.

smoke passages 2'and 24 are entirely independent 'ofthe air passages 2l,23 and 25,' consequently there will be no change or danger ogasandsmokepangthrough the blower to injure or destroy the same. From thecommon smoke flue 28 the smoke and=gas arecarried downwardly throughtheelbow29tothesewer,oranyotherpomt desired, but before said smoke andgases are 'to escape they are reduced m tem ture and treated by being Ya -lm or volume of water w 'chis preferably supplied to the line direct!beneaththe elbow 29. At point sai ilus s slghtl v reduced in diameter al39, while indi above said reduced portion a disk 40, preferably.conical, with its bsedirectly is rotata bly arranged downw',saiddiskbeingsecuredtothelowerendo alaftl a sleeve 42', which outerwall of the eL 'wand securedat its outer end a motori-13, preferably awater motor; Said motor 43 is operatively connected to the upperend-ofthe 4L lsadapedtobeo ted by. water which is delivered thereto apipe i4 connectedto the' periphery of the 'osaid motor. As the watpasses thrWghthe-motor it is inte the sleeve' 42 from-whence it 1sdehvemd to the outeror uplex surface of the disk 40, which i's routed?"y said motor, whereupon the waterdelvered to said disk will be thrownoutwardly by centrifugal force-against the inner wall of the ne, withinwhich said disk forming a volume of water which' cnders and smokemustpaas before they are discharged. Said water downwardly to the dischargefor'sad line with it an dimi or cinderswhldi may have saidllue'.

inbeforo d tum oimpulc1 arr additional win be gime-um more and thusremovcimpro-or eses from the gucke-'or air and Sme ser@ vredig i.a @ofthe same and u r smokeandgasestobetreatedinalke manner. To provide freeaccess to the smoke passages in order to the smoke and cinders from thepartitions 15, the upwall 45 of said casing is provided with peraplurality ofo 46 whichai'eclosed by doors fjpreferab y formed 1u twosec tions, pivo y mounted upon 48 arranged longitudinall of the casingat the u per corners thereo and in the upper ends o reno members 49,preferably angles extending transversely of the side walls 19 of saideasingt A cinder drum 50 is formed along the bottom of the casing 12communicating with the paages 22 and 24 which catches the cinders comingin cpntact with the corrugations 16 of the tpartitions 15 and aredeflectedtherebyto ebottomofthecasing. A plurality of gates atpredetermined distances a art along ofsaidcinderdrum ymeansofwhichthecinders, which have collected in said drum, ma be withdrawn.

lid e I have herein shown and described one specific embodiment of minvention for illustrative urposz and ve disclosed pei'mi and discumindetail the construdzion and arrangement incidental to one applitionthereof, it is to be understood that the invention is limited neither tothe mere det-15' sin t. h t shopu'm toits ap ca on erein that extam'vefrom thgnillus ti'atedl form or embodiment of the invention may be madewithout departing from the rinciples thereof.

ying thus described my invention whatIclauuanddesirebyLettersPatentto 1. As: paratus f the olas described apo a lurality of smoke ues, a p of air ilu alternating with said smokeues, tions between said an air ues the 2. An apparatus of the elmdescribed passa 3. gils. apparatus of the cla described having, incombination, a casing a l of vertical partitions arof said casingadapteddto divide the samc. into altrnate smoke an airpsageszapurahtyoreinf' orcing n iemhers extending transversely of o posite sides of saidcasing, rods onof and at opposite sd o said gitudinally casingthrotheuperendsofsaidreinforcing mem an a lurality of doors pivotallymounted on sai rods adapted to tace@tosadsmokepassages.- 4.A.n apparatus@abme ,lPUlh 0 vel'tluyd-lslosed onsextai lengthwiseofsaidcasngadaptedtodivi esaidcasngintoaplurality of alternate smoke andair saideasing consisting of a plurality o cinder drumsat thebottom thereofcommunicating with all of the smoke of said casing, said druinshaving atthe bottongsthereof, said casmllso havinga plurality of openings at topeondzructed andarrangedtopermitaectoallofsaid pasag and meansconstructed and arrangedtompelsmokeandairthroughsaid Inttimonywhereolhaveherelmtoset my hand in presence of two subscribing witness.

arctangulatcas- FRANK H. COLE.

Wt'ne:

Cnam S. Gooonro, Snam E. Tm.

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